Struck between 1986 & 1988 by the Perth Mint featuring a Natural Nugget Design then from 1989 to 2015 they are struck with the Iconic Kangaroo Design.Struck by The Perth Mint from 99.99% pure gold, each coin is issued as legal tender under the Australian Currency Act 1965, the undisputed guarantee of its weight and purity.Portraying creative new reverse artistry, every gold bullion coin also features The Perth Mint”s historic “P” mintmark, a traditional symbol of quality trusted by investors worldwide.